Say hello to your skin's new BFF GHK Cu is a powerful peptide that supports collagen production, speeds healing, improves hair growth, and helps fight visible signs of aging. This tiny molecule The GHK Cu pen works. But needles at home were never the answer. We took the same clinically backed copper peptide complex and put it into a serum you can use in 30 seconds, USA Copper Peptide GHK Cu Powder, DIY Blue Copper for Making the Best Face Cream GHK CU VIBRANCY MICRONEEDLING KIT LUX LAB